Mode Selectable Field Transmitter for Process Control
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Solution Overview
Problem
Field transmitters used in process control plants require multiple devices with varying functionalities and power consumption, leading to inefficiencies and increased costs due to the need for different transmitters for different applications.
Innovation Solution
A mode selectable field transmitter that can configure its operational modes to allocate power and functionality based on specific requirements, using a controller to modify the operation of its components such as sensors, signal processors, and communication circuits, allowing a single transmitter to meet various applications by selecting from different modes like universal, fast response, and high performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple unique transmitters with different functionalities are used to meet various applications, then application-specific performance is improved, but device complexity and inventory requirements increase
Solution Approach 1:
The transmitter is designed with a universal architecture that can perform multiple functions through software configuration. A single transmitter device can be adapted to different applications by selecting from predefined operational modes (e.g., universal mode, fast response mode, high performance mode) or by downloading custom mode sets via communication interfaces, eliminating the need for multiple specialized transmitter types.
Solution Approach 2:
The transmitter implements dynamic operational modes that allow real-time adjustment of performance characteristics. The controller can switch between different operational modes based on application requirements, dynamically allocating power and adjusting functionality to match specific process control needs without requiring hardware changes.
2Measurement precision
If transmitters are configured for high performance and fast response, then measurement and control quality is improved, but power consumption increases
Solution Approach 1:
The transmitter changes operational parameters dynamically based on the selected mode. In high performance modes, parameters such as sampling rate, processing power, and communication frequency are increased to improve measurement precision. In power-saving modes, these parameters are reduced. The controller adjusts power allocation to different components (sensor, signal processor, communication circuit) based on the active operational mode.
3Device complexity
If a single transmitter is used for multiple applications, then device inventory and cost are reduced, but the ability to meet specific application requirements may be compromised
Solution Approach 1:
The transmitter incorporates a universal design with configurable operational modes that can be adapted to different applications. The device includes a controller that can be electrically configured to one of several operational modes, each optimized for specific application requirements such as universal operation, fast response, or high performance.
Solution Approach 2:
The transmitter comes pre-configured with multiple operational modes that have been optimized for different application scenarios. These modes are prepared in advance and can be selected based on the specific application requirements, eliminating the need for custom hardware configurations for each application while maintaining optimal performance.
Data Source
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AI summary
A selectable mode field transmitter is configurable to operate in one of a plurality of operating modes having different combinations of function, performance, and power consumption. The selectable mode field transmitter includes a housing, a sensor located within the housing, and transmitter circuitry for transmitting data provided by the sensor to a receiver external to the housing. The transmitter circuitry includes a controller that electrically configures the transmitter circuitry to one of a plurality of operational modes in response to mode selection data received from a source external to the housing. Therefore, the selectable mode field transmitter can be configured based on the needs or requirements of a particular application.